Heat exchanger

ABSTRACT

A heat exchanger is disclosed for transferring energy between a first flowing fluid and a second flowing fluid. The heat exchanger comprises a first, second and third tube having an input end and an output end. A primary and a secondary angled couplers join the output end of the first tube to the input end of the second tube and the output end of the second tube to the input end of the third tube respectively. A continuous conduit conveys the second flowing fluid between a conduit input and a conduit output. The continuous conduit has a cross sectional area less than the cross sectional area of the first tube and the third tube for enabling the continuous conduit to be inserted within the first tube and the third tube. The continuous conduit enters a first aperture to extend inside the first tube for enabling heat exchange between the first flowing fluid and the second flowing fluid. The continuous conduit exits from a second aperture of the primary angled coupler to extend outside the second tube. The continuous conduit enters a third aperture of the secondary angled coupler to extend inside the third tube for enabling heat exchange between the first flowing fluid and the second flowing fluid. The continuous conduit exits a fourth aperture to extend outside the third tube.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to thermal energy and more particularly to animproved apparatus for transferring energy between a first flowing fluidand a second flowing fluid.

2. Background of the Invention

Various types of apparatuses have been proposed for transferring thermalenergy between two fluids. A heat exchanger is a device used fortransferring thermal energy between a first flowing fluid and a secondflowing fluid. Heat exchangers are commonly used in refrigeration, airconditioning, space heating, power production and chemical processing.Heat exchangers are designed to maximize the surface area of the wallbetween the two fluids and minimizing the resistance of the fluid flowthrough the exchanger. The efficiently of a heat exchanger can also beaffected by the addition of fins or corrugations on one or bothdirections, which increase surface area and may channel fluid flow orinduce turbulence. The performance of the heat exchanger may also beaffected by the direction of flow of a first flowing fluid and a secondflowing fluid.

Although the efficiently of a heat exchanger are important designcriteria, the cost of materials, manufacture and maintenance of the heatexchanger also are important considerations before a heat exchanger isutilized. The following U.S. Patents are examples of attempts of theprior art to solve these efficiently and cost issues.

U.S. Pat. No. 4,469,762 to Singh discloses a self-draining decompositionheat exchanger arrangement for a metal-halogen battery system. Thearrangement has a decomposition heat exchanger positioned higher thanthe electrolyte collected in the sump of the electrode stack section ofthe battery system to allow electrolyte to drain out of the heatexchanger when electrolyte is not being circulated therethrough. Theheat exchanger has an inlet portion, an outlet portion, and a centralportion that is preferably formed of helically coiled tubing and thatpreferably slopes continuously downward to promote complete drainage.The arrangement preferably also has vent means connected to the gasspace above the sump in the stack section and attached to conduit meansbetween the outlet of the electrolyte pump and inlet of the heatexchanger for improving drainage of the heat exchanger by allowing gasto enter the heat exchanger to replace the electrolyte as it drainstherefrom.

U.S. Pat. No. 4,518,663 to Kodali, et al. discloses an improvedelectrolyte circulation subsystem which reduces and minimizes the effectof parasitic currents in secondary batteries having a plurality of cellsconnected electrically in series and a common electrolyte incommunication with the cells is described. The improved electrolytecirculation subsystem includes means for pumping an electrolyte, andmanifold means for conveying electrolyte to a plurality of cellsconnected electrically in series. The manifold means generally comprisesan outer tube formed with an outlet port at each end thereof, and aninner tube concentrically disposed within the outer tube generally alongone-half of the outer tube length. The inner tube is in fluidcommunication with the pumping means at a first end thereof and is influid communication with the outer tube at a second end thereof. Theinner tube also has means associated with the second end for generallyequally diverting the flow of the electrolyte through the inner tube toeach of the outlet ports of the outer tube. The electrolyte circulationsubsystem also includes a separate conduit means in fluid communicationwith each of the outlet ports of the outer tube for individuallydistributing electrolyte from the outlet tube to generally one-half ofthe cells.

U.S. Pat. No. 4,518,664 to whittlesey, et al. discloses an electrodeassembly comprising a first electrode, a pair of second planarelectrodes, a generally rectangular frame member for supporting each ofthe second electrodes substantially along three sides thereof. Therectangular frame member has a pair of spaced inwardly extendingchannels through which the second electrodes slide into and mask theedges of the second electrodes along the three supported sides, and alaterally displaced integrally formed, inwardly facing elongate channelalong an unsupported side of the second electrode which is adjacent toan external face of one of the second electrodes and shaped to receiveone side of the first electrode while masking the adjacent secondelectrode along the unsupported side thereof. A generally elongatedframe member couples to the rectangular frame member between the secondelectrodes along the unsupported edge thereof. Conduit means associatedwith the elongated frame member conveys fluid to the cavity between thesecond electrodes.

U.S. Pat. No. 4,571,475 to Rabe discloses an internal bore welding torchassembly and method for use in making remote arc welds inside metaltubes. The torch assembly includes a torch body unit of plasticelectrical insulating material, to which is connected the necessarywelding services of coolant, shield gas, and electric power. The bodyunit contains a removable and rotatable welding wand which is made offlexible plastic and has a welding electrode oriented radially at itsouter end. For making a weld, such as for repairing a damaged tube, ametal sleeve is first inserted into the tube the flexible welding wandis then inserted into the tube and the radial electrode positionedadjacent an end of the sleeve. The flows of coolant and shield gas areprovided through the torch body unit to the wand, and the wand isrotated while making the metal arc welds desired to seal weld the sleeveends to the tube.

U.S. Pat. No. 4,690,208 to Deck discloses a heat exchanging system forexchanging heat with contaminated water including a housing having acoaxial tube exchanger assembly with return passages in the housing endsfor the outer tubes and return tube bends for the inner tubes. A filterat the inlet of the coaxial tube assembly is formed of a number ofpassages in parallel with right angle bends defined by parallel finsbetween a bottom plate and transparent top plate. For cleaning there isa pressure chamber, a fill valve and an air valve intermittentlyactivated. There is also a drain valve and a vacuum release valve. Heatexchanger tube is manufactured by rotatably and axially feeding tubingthrough a repeating impacting pointed power hammer that forms sharp edgecraters on the exterior of the tube and sharp peaks on the interior. Animpact tool driven by a powered impact hammer strikes the tubing passingthrough a tube pathway defined by variable direction rollers. A powerdrive roller has its axis askew to the axis of the tube.

U.S. Patent Application 20050043725 to Duong, et al. discloses athreaded cryostat for a cryosurgical probe system including an outertube and a hollow elongated threaded element positioned within the outertube. The threaded element has integral, external threads that extendfrom on an outer surface thereof. During operation a working fluid istransported in a first direction between a fluid supply line and adistal end of a cryosurgical probe within a first space defined withinthe threaded element. Working fluid is transported in a second directionbetween the distal end of the cryosurgical probe and the fluid supplyline within a second space defined between the outer tube and thethreaded element.

Although the aforementioned prior art have contributed to thedevelopment of the art of heat exchangers, none of these prior artpatents have solved the needs of this art.

Therefore, it is an object of the present invention to provide animproved heat exchanger for transferring thermal energy between a firstflowing fluid and a second flowing fluid.

Another object of this invention is to provide an improved heatexchanger wherein the materials used to construct the heat exchanger areinexpensive and easily obtained.

Another object of this invention is to provide an improved heatexchanger wherein the time required to assemble the heat exchanger isreduced.

Another object of this invention is to provide an improved heatexchanger wherein the cost of manufacturing the heat exchanger isreduced.

The foregoing has outlined some of the more pertinent objects of thepresent invention. These objects should be construed as being merelyillustrative of some of the more prominent features and applications ofthe invention. Many other beneficial results can be obtained bymodifying the invention within the scope of the invention. Accordinglyother objects in a full understanding of the invention may be had byreferring to the summary of the invention, the detailed descriptiondescribing the preferred embodiment in addition to the scope of theinvention defined by the claims taken in conjunction with theaccompanying drawings.

SUMMARY OF THE INVENTION

A specific embodiment of the present invention is shown in the attacheddrawings. For the purpose of summarizing the invention, the inventionrelates to an improved heat exchanger for transferring energy between afirst flowing fluid and a second flowing fluid. The heat exchangercomprises a first tube having an input end and an output end. A secondtube has an input end and an output end. A primary angled coupler joinsthe output end of the first tube to the input end of the second tube forcreating a first continuous fluid path for the first flowing fluid. Athird tube has an input end and an output end. A secondary angledcoupler joins the output end of the second tube to the input end of thethird tube for creating a second continuous fluid path for the firstflowing fluid. A fourth tube has an input end and an output end. Aninput angled coupler joins the output end of the fourth tube to theinput end of the first tube for creating a third continuous fluid pathfor the first flowing fluid. A fifth tube has an input end and an outputend. An initial angled coupler joins the output end of the fifth tube tothe input end of the fourth tube for creating a fourth continuous fluidpath for the first flowing fluid. A subsequent angled coupler is securedon the input end of the fifth tube for inputting the first flowing fluidinto the fifth tube. An output angled coupler is secured on the outputend of the third tube for outputting the first flowing fluid from thethird tube. A first aperture is positioned in the input angled coupler.A second aperture is positioned in the primary angled coupler. A thirdaperture is positioned in the secondary angled coupler. A fourthaperture is positioned in the output angled coupler. A fifth aperture ispositioned in the initial angled coupler. A sixth aperture is positionedin the subsequent angled coupler. A continuous conduit conveys thesecond flowing fluid between a conduit input and a conduit output. Thecontinuous conduit has a cross sectional area less than a crosssectional area of the first tube, the third tube and the fifth tube forenabling the continuous conduit to be inserted within the first tube,the third tube and the fifth tube. The continuous conduit enters thefirst aperture to extend inside the first tube for enabling heatexchange between the first flowing fluid and the second flowing fluid.The continuous conduit exits from the second aperture of the primaryangled coupler to extend outside the second tube. The continuous conduitenters the third aperture of said secondary angled coupler to extendinside the third tube for enabling heat exchange between the firstflowing fluid and the second flowing fluid. The continuous conduit exitsthe fourth aperture to extend outside the third tube. The continuousconduit enters the fifth aperture of the initial angled coupler toextend inside the fifth tube for enabling heat exchange between thefirst flowing fluid and the second flowing fluid. The continuous conduitexits the sixth aperture to extend outside the fifth tube.

In a more specific embodiment of the invention, the first tube, secondtube, and third tube, the primary angled coupler, secondary angledcoupler, input angled coupler and the output angled coupler include apolymeric material. The continuous conduit includes a metallic material.The primary angled coupler, secondary angled coupler, input angledcoupler and the output angled coupler includes a ninety degree coupler.The direction of flow of the first flowing fluid in the first tube,second tube and the third tube matches the direction of flow of thesecond flowing fluid in the continuous conduit. The direction of flow ofthe first flowing fluid in the fifth tube is opposite to the directionof flow of the second flowing fluid in the continuous conduit.

In one embodiment of the invention, an open reservoir contains the firstflowing fluid. The first, second and third tubes and the continuousconduit are positioned within the open reservoir. A first pump is linkedto the input orifice of the first tube for propelling the first flowingfluid from the input end of the first tube through the first continuousfluid path and the second continuous fluid path to the output end of thethird tube. A compressor is linked to the continuous conduit forpropelling the second flowing fluid through the continuous conduit.

In another embodiment of the invention, a closed reservoir contains thefirst flowing fluid. The first, second and third tubes and thecontinuous conduit are positioned within the closed reservoir. A firstpump is linked to the input orifice of the first tube for propelling thefirst flowing fluid from the input end of the first tube through thefirst continuous fluid path and the second continuous fluid path to theoutput end of the third tube. A compressor is linked to the continuousconduit for propelling the second flowing fluid through the continuousconduit.

The foregoing has outlined rather broadly the more pertinent andimportant features of the present invention in order that the detaileddescription that follows may be better understood so that the presentcontribution to the art can be more fully appreciated. Additionalfeatures of the invention will be described hereinafter which form thesubject of the claims of the invention. It should be appreciated bythose skilled in the art that the conception and the specificembodiments disclosed may be readily utilized as a basis for modifyingor designing other structures for carrying out the same purposes of thepresent invention. It should also be realized by those skilled in theart that such equivalent constructions do not depart from the spirit andscope of the invention as set forth in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

For a fuller understanding of the nature and objects of the invention,reference should be made to the following detailed description taken inconnection with the accompanying drawings in which:

FIG. 1 is an elevational view of a first embodiment of the presentinvention illustrating a heat exchanger transferring energy between afirst flowing fluid and a second flowing fluid;

FIG. 2 is an enlarged view of a portion of FIG. 1 illustrating the heatexchanger positioned within an open reservoir;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a view similar to FIG. 4 with a portion having a sectionalview;

FIG. 6 is an enlarged view of a portion of FIG. 3;

FIG. 7 is a view similar to FIG. 6 with a portion having a sectionalview;

FIG. 8 is a view similar to FIG. 2 illustrating the heat exchanger in ahorizontal position;

FIG. 9 is a top view of a second embodiment of the present inventionillustrating a heat exchanger transferring energy between a firstflowing fluid and a second flowing fluid;

FIG. 10 is a side view of FIG. 9;

FIG. 11 is a front view of FIG. 9;

FIG. 12 is a sectional view along line 12-12 in FIG. 10;

FIG. 13 is an enlarged view of a portion of FIG. 12; and

FIG. 14 is an ladder electrical diagram for operating the heatexchanger.

Similar reference characters refer to similar parts throughout theseveral Figures of the drawings.

DETAILED DISCUSSION

FIGS. 1 thru 8 illustrate a first embodiment of a heat exchanger 2 fortransferring energy between a first flowing fluid 4 and a second flowingfluid 6. The heat exchanger 2 includes a first tube 10 having an inputend 12 and an output end 14. A second tube 20 has an input end 22 and anoutput end 24. A primary angled coupler 62 joins the output end 14 ofthe first tube 10 to the input end 22 of the second tube 20 for creatinga first continuous fluid path 70 for the first flowing fluid 4. A thirdtube 30 has an input end 32 and an output end 34. A secondary angledcoupler 64 joins the output end 24 of the second tube 20 to the inputend 32 of the third tube 30 for creating a second continuous fluid path72 for the first flowing fluid 4.

The first tube 10, second tube 20 and the third tube 30 may beconstructed from polyethene, polypropylene, polyvinyl chloride (PVC),chlorinated polyvinyl chloride (CPVC), polybutylene, polyethylene,polyvinylidine Difluoride (PVDF), rubber, neoprene, sheet plastic,metal, acrylonitrile butadiene styrene (ABS) or other rigid material.The primary angled coupler 62 and the secondary angled coupler 64 mayinclude a ninety degree coupler 69 constructed from polyethene,polypropylene, polyvinyl chloride (PVC), chlorinated polyvinyl chloride(CPVC), polybutylene, polyethylene, polyvinylidine Difluoride (PVDF),rubber, neoprene, sheet plastic, metal, acrylonitrile butadiene styrene(ABS) or other rigid material. An adhesive may be utilized to secure theprimary angled coupler 62 to the output end 14 of the first tube 10 tothe input end 22 of the second tube 20 and to secure the secondaryangled coupler 64 to the input end 32 of the third tube to the outputend 24 of the second tube 20. The adhesive may include a solvent cementsuch as acrylic adhesive, polyurethane adhesive or other adhesive suitedto the tubing and coupling construction.

An input orifice 16 is located at the input end 12 of the first tube 10for inputting the first flowing fluid 4 into the first tube 10. Anoutput orifice 36 is located at said output end 34 of the third tube 30for outputting the first flowing fluid 4 from the third tube 30.

A first aperture 80 is positioned relative to the input end 12 of thefirst tube 10. A second aperture 82 is positioned in the primary angledcoupler 62. A third aperture 84 is positioned in the secondary angledcoupler 64. A fourth aperture 86 is positioned relative to the outputend 34 of the third tube 30. The second aperture 82 and the thirdaperture 84 may be manufactured by drilling a hole through the primaryangled coupler 62 and secondary angled coupler 64 respectively.

A continuous conduit 100 conveys the second flowing fluid 6 between aconduit input 102 and a conduit output 104. The continuous conduit 100may include a metallic material such as copper, steel, aluminum or otherrigid material. The continuous conduit 100 has a cross sectional arealess than a cross sectional area of the first tube 10 and the third tube30 for enabling the continuous conduit 100 to be inserted within thefirst tube 10 and the third tube 30.

Preferably, the diameter of the first aperture 80, second aperture 82,third aperture 84 and fourth aperture 86 are slightly larger than theoutside diameter of the continuous conduit 100 such that the continuousconduit 100 may easily traverse into the respective tubes. Thecontinuous conduit 100 enters the first aperture 80 to extend inside thefirst tube 10 for enabling heat exchange between the first flowing fluid4 and the second flowing fluid 6. The continuous conduit 100 exits fromthe second aperture 82 of the primary angled coupler 62 to extendoutside the second tube 20. The continuous conduit 100 enters the thirdaperture 84 of the secondary angled coupler 64 to extend inside thethird tube 30 for enabling heat exchange between the first flowing fluid4 and the second flowing fluid 6. The continuous conduit 100 exits thefourth aperture 86 to extend outside the third tube 30.

The insertion of the continuous conduit 100 into the first tube 10 forenabling heat exchange between the first flowing fluid 4 and the secondflowing fluid 6 constitutes a single pass heat exchanger 114. Theinsertion of the continuous conduit 100 into the first tube 10 and thesecond tube 20 for enabling heat exchange between the first flowingfluid 4 and the second flowing fluid 6 constitutes a double pass heatexchanger 116.

An input angled coupler 60 may be secured on the input end 12 of thefirst tube 10. The first aperture 80 is positioned in the input angledcoupler 60. An output angled coupler 66 may be secured on the output end34 of the third tube 30. The fourth aperture 86 is positioned in theoutput angled coupler 66. The input angled coupler 60 and the outputangled coupler 66 may include a ninety degree coupler 69 constructedfrom polyethene, polypropylene, polyvinyl chloride (PVC), chlorinatedpolyvinyl chloride (CPVC), polybutylene, polyethylene, polyvinylidineDifluoride (PVDF), rubber, neoprene, sheet plastic, metal, acrylonitrilebutadiene styrene (ABS) or other rigid material. An adhesive may beutilized to secure the input angled coupler 60 to the input end 12 ofthe first tube 10 and to secure the output angled coupler 66 to theoutput end 34 of the third tube 30. The adhesive may include a solventcement such as acrylic adhesive, polyurethane adhesive or other adhesivesuited to the tubing and coupling construction.

Preferably, the first aperture 80 and second aperture 82 are alignedwith the first tube 10 such that the continuous conduit 100 may traversedirectly through the first aperture 80 and second aperture 82 to enterand exit the first tube 10 without bending the continuous conduit 100.Similarly, the third aperture 84 and fourth aperture 86 are aligned withthe third tube 30 such that the continuous conduit 100 may traversedirectly through the third aperture 84 and fourth aperture 86 to enterand exit the third tube 30 without bending the continuous conduit 100.After the continuous conduit 100 exits from the second aperture 82, thecontinuous conduit 100 preferably includes an arch contour 106 toredirect the continuous conduit 100 one hundred eighty degrees (180°)permitting the continuous conduit 100 to enter the third aperture 84.The arch contour 106 may be created by a pipe bender or other techniquesthat provides a uniform contour. The arch contour 106 eliminates theneed for return bend couplings that may lead to leaking of the secondflowing fluid 6 and further resist the flow of the second flowing fluid6. Alternatively, the continuous conduit 100 may include a series oftrombone shaped metal tubes with return bend couplings.

As seen in FIGS. 1-3 and 8 the output angled coupler 66 of the thirdtube 30 may be secured to an additional input angled coupler 60 of thefirst tube 10 to form a plurality of first fluid paths 70 and aplurality of second fluid paths 72. If a plurality of first fluid paths72 and second fluid paths 72 are linked together, the continuous conduit100 will also be inserted into the additional first tubes 10 and thirdtubes 30. By forming multiple first fluid paths 70 and second fluidpaths 72, a plurality of double pass heat exchangers 116 may be linkedtogether to form any desired length of the heat exchanger 2. A pluralityof separate heat exchangers 2 may also be utilized in parallel whereineach heat exchanger 2 includes separate input angled couplers 60,separate first tubes 10, second tubes 20, third tubes 30 and separateoutput angled couplers 66. The separate heat exchangers 2 may be linkedto a common tube manifold 110 and a common continuous conduit manifold112.

The heat exchanger 2 is shown having a linear first tube 10, second tube20 and the third tube 30 with a linear continuous conduit 100 portionextending inside the first 10 and second 20 tubes. In the alternative,the first tube, second 20 and portion of continuous conduit 100extending inside the first 10 and second 20 tubes may have circularconfiguration in order to reduce the size of the heat exchanger 2.

A fourth tube 40 has an input end 42 and an output end 44. The inputangled coupler 60 joins the output end 44 of the fourth tube 40 to theinput end 12 of the first tube 10 for creating a third continuous fluidpath 74 for the first flowing fluid 4. A fifth tube 50 has an input end52 and an output end 54. An initial angled coupler 67 joins the outputend 54 of the fifth tube 50 to the input end 42 of the fourth tube 40for creating a fourth continuous fluid path 76 for the first flowingfluid 4. A subsequent angled coupler 68 is secured on the input end 52of the fifth tube 50 for inputting the first flowing fluid 4 into thefifth tube 50. A fifth aperture 88 is positioned in the initial angledcoupler 67. A sixth aperture 90 is positioned in the subsequent angledcoupler 68.

The fourth tube 40 and fifth tube 50 may be constructed from polyethene,polypropylene, polyvinyl chloride (PVC), chlorinated polyvinyl chloride(CPVC), polybutylene, polyethylene, polyvinylidine Difluoride (PVDF),rubber, neoprene, sheet plastic, metal, acrylonitrile butadiene styrene(ABS) or other rigid material. The initial angled coupler 67 and thesubsequent angled coupler 68 may include a ninety degree coupler 69constructed from polyethene, polypropylene, polyvinyl chloride (PVC),chlorinated polyvinyl chloride (CPVC), polybutylene, polyethylene,polyvinylidine Difluoride (PVDF), rubber, neoprene, sheet plastic,metal, acrylonitrile butadiene styrene (ABS) or other rigid material. Anadhesive may be utilized to secure the input angled coupler 60 to theoutput end 42 of the fourth tube 40 to the input end 12 of the firsttube 10. An adhesive may also be utilized to secure the initial angledcoupler 67 to the output end 54 of the fifth tube 50 to the input end 42of the fourth tube 40 and the subsequent angled coupler 68 to the inputend 52 of the fifth tube 50. The adhesive may include a solvent cementsuch as acrylic adhesive, polyurethane adhesive or other adhesive suitedto the tubing and coupling construction.

The continuous conduit 100 has a cross sectional area less than a crosssectional area of the fifth tube 50 for enabling the continuous conduit100 to be inserted within the fifth tube 50. Preferably, the diameter ofthe fifth aperture 88 and sixth aperture 90 are slightly larger than theoutside diameter of the continuous conduit 100 such that the continuousconduit 100 may easily traverse into the respective tubes. After thecontinuous conduit 100 exits the fourth aperture 86 to extend outsidethe third tube 30, the continuous conduit 100 may enter the fifthaperture 88 of the initial angled coupler 67 to extend inside the fifthtube 50 for enabling heat exchange between the first flowing fluid 4 andthe second flowing fluid 6. Thereafter the continuous conduit 100 exitsthe sixth aperture 90 to extend outside the fifth tube 50. The insertionof the continuous conduit 100 into the fifth tube 50 for enabling heatexchange between the first flowing fluid 4 and the second flowing fluid6 constitutes a single pass heat exchanger.

Preferably, the fifth aperture 88 and sixth aperture 90 are aligned withthe fifth tube 50 such that the continuous conduit 100 may traversedirectly through the fifth aperture 88 and sixth aperture 90 to enterand exit the fifth tube 50 without bending the continuous conduit 100.After the continuous conduit 100 exits from the fourth aperture 86, thecontinuous conduit 100 preferably includes an semi-arch contour 108 toredirect the continuous conduit 100 ninety degrees (90°) such that thecontinuous conduit 100 may enter the fifth aperture 88 and avoidresistance flow of the second flowing fluid 6.

The direction of flow of the first flowing fluid 4 in the first tube 10,second tube 20 and the third tube 30 preferably match the direction offlow of the second flowing fluid 6 in the continuous conduit 100. Thedirection of flow of the first flowing fluid 4 in the fifth tube 50preferably is opposite to the direction of flow of the second flowingfluid 6 in the continuous conduit 100 to function as a super heater orsuper chiller.

In the first embodiment of the present invention the heat exchanger 2 ispositioned within an open reservoir 120 containing the first flowingfluid 4. The open reservoir 120 may include a tank liner 122 forpreventing leakage of the first flowing fluid 4 from the open reservoir120. In addition, the open reservoir 120 may include a tank insulationlayer 124 and a top insulation layer 126 to resist the thermal transferof energy between the first flowing fluid 4 and the exterior. The firsttube 10, second tube 20, third tube 30 and the continuous conduit 100are positioned within the open reservoir 120. A first pump 130 ispositioned on the bottom of the open reservoir 120 for propelling thefirst flowing fluid 4 from the input end 12 of the first tube 10 throughthe first continuous fluid path 70 and the second continuous fluid path72 to the output end 34 of the third tube 30. A compressor 162 is linkedinline with the continuous conduit 100 for propelling the second flowingfluid 6 through the continuous conduit 100.

Since the diameter of the apertures 80-90 are slightly larger than theoutside diameter of the continuous conduit 100, the first flowing fluid4 that is propelled through angled couplers 60-68 will leach frombetween the apertures 80-90 and outer wall of the continuous conduit100. The leaching of the first flowing fluid 4 from the apertures 80-90is not significant since the heat exchanger 2 is submerged beneath thefirst flowing fluid 4.

As best seen in FIG. 8 the first pump 130 may be placed within a pumpenclosure 139. An inlet end 134 traverses through the pump enclosure 139and is secured to the fluid input of the first pump 130. An output end136 also traverses through the pump enclosure 139 and is secured betweenthe fluid output of the first pump 130 and the input end 12 of the firsttube 10. The first pump 130 positioned within the pump enclosure 139assures that only the first flowing fluid 4 located at the top of theopen reservoir 120 is propelling through the first continuous fluid path70 and the second continuous fluid path 72. A first pump union 138 maybe positioned within the output end 136 to facilitate removal of thefirst pump 130 if maintenance or replacement is required.

FIGS. 9 thru 13 illustrate a second embodiment of a heat exchanger 2 fortransferring energy between a first flowing fluid 4 and a second flowingfluid 6. The closed reservoir 210 comprises a cylindrical body 212having a front end 214 and a rear end 216. The cylindrical body 212includes a first flowing fluid input bore 218 and a first flowing fluidoutput bore 220 for enabling a continuous tube 219 to enter and exit theclosed reservoir 210 respectively. The first 10, second 20 and third 30tubes and the continuous conduit 100 are positioned within the closedreservoir 210.

The continuous tube 219 is secured to the first tube 10 by the inputangled coupler 60. The continuous tube 219 is further secured to thethird tube 30 by the output angled coupler 66. The front end 214 of theclosed reservoir 210 includes a second flowing fluid input bore 222 anda second flowing fluid output bore 224 for enabling the continuousconduit 100 to enter and exit the closed reservoir 210 respectively.

The closed reservoir 210 may be constructed from polyethene,polypropylene, polyvinyl chloride (PVC), chlorinated polyvinyl chloride(CPVC), polybutylene, polyethylene, polyvinylidine Difluoride (PVDF),rubber, neoprene, sheet plastic, metal, acrylonitrile butadiene styrene(ABS) or other rigid material. The initial angled coupler 67 and thesubsequent angled coupler 68 may include a ninety degree coupler 69constructed from polyethene, polypropylene, polyvinyl chloride (PVC),chlorinated polyvinyl chloride (CPVC), polybutylene, polyethylene,polyvinylidine Difluoride (PVDF), rubber, neoprene, sheet plastic,metal, acrylonitrile butadiene styrene (ABS) or other rigid material.

The first tube 10 has an input end 12 and an output end 14. The secondtube 20 has an input end 22 and an output end 24. The primary angledcoupler 62 joins the output end 14 of the first tube 10 to the input end22 of the second tube 20 for creating a first continuous fluid path 70for the first flowing fluid 4. The third tube 30 has an input end 32 andan output end 34. A secondary angled coupler 64 joins the output end 24of the second tube 20 to the input end 32 of the third tube 30 forcreating a second continuous fluid path 72 for the first flowing fluid4.

The first tube 10, second tube 20 and the third tube 30 may beconstructed from polyethene, polypropylene, polyvinyl chloride (PVC),chlorinated polyvinyl chloride (CPVC), polybutylene, polyethylene,polyvinylidine Difluoride (PVDF), rubber, neoprene, sheet plastic,metal, acrylonitrile butadiene styrene (ABS) or other rigid material.The primary angled coupler 62 and the secondary angled coupler 64 mayinclude a ninety degree coupler 69 constructed from polyethene,polypropylene, polyvinyl chloride (PVC), chlorinated polyvinyl chloride(CPVC), polybutylene, polyethylene, polyvinylidine Difluoride (PVDF),rubber, neoprene, sheet plastic, metal, acrylonitrile butadiene styrene(ABS) or other rigid material. An adhesive may be utilized to secure theprimary angled coupler 62 to the output end 14 of the first tube 10 tothe input end 22 of the second tube 20 and to secure the secondaryangled coupler 64 to the input end 32 of the third tube to the outputend 24 of the second tube 20. The adhesive may include a solvent cementsuch as acrylic adhesive, polyurethane adhesive or other adhesive suitedto the tubing and coupling construction.

An input orifice 16 is located at the input end 12 of the first tube 10for inputting the first flowing fluid 4 into the first tube 10. Anoutput orifice 36 is located at said output end 34 of the third tube 30for outputting the first flowing fluid 4 from the third tube 30.

A first aperture 80 is positioned relative to the input end 12 of thefirst tube 10. A second aperture 82 is positioned in the primary angledcoupler 62. A third aperture 84 is positioned in the secondary angledcoupler 64. A fourth aperture 86 is positioned relative to the outputend 34 of the third tube 30. The second aperture 82 and the thirdaperture 84 may be manufactured by drilling a hole through the primaryangled coupler 62 and secondary angled coupler 64 respectively.

The continuous conduit 100 conveys the second flowing fluid 6 between aconduit input 102 and a conduit output 104. The continuous conduit 100may include a metallic material such as copper, steel, aluminum or otherrigid material. The continuous conduit 100 has a cross sectional arealess than a cross sectional area of the first tube 10 and the third tube30 for enabling the continuous conduit 100 to be inserted within thefirst tube 10 and the third tube 30.

Preferably, the diameter of the first aperture 80, second aperture 82,third aperture 84 and fourth aperture 86 are slightly larger than theoutside diameter of the continuous conduit 100 such that the continuousconduit 100 may easily traverse into the respective tubes. Thecontinuous conduit 100 enters the second flowing fluid input bore 222and the first aperture 80 to extend inside the first tube 10 forenabling heat exchange between the first flowing fluid 4 and the secondflowing fluid 6. The continuous conduit 100 exits from the secondaperture 82 of the primary angled coupler 62 to extend outside thesecond tube 20. The continuous conduit 100 enters the third aperture 84of the secondary angled coupler 64 to extend inside the third tube 30for enabling heat exchange between the first flowing fluid 4 and thesecond flowing fluid 6. The continuous conduit 100 exits the fourthaperture 86 to extend outside the third tube 30 and exit the closedreservoir through the second flowing fluid output bore 224.

The input angled coupler 60 and the output angled coupler 66 may includea ninety degree coupler 69 constructed from polyethene, polypropylene,polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC),polybutylene, polyethylene, polyvinylidine Difluoride (PVDF), rubber,neoprene, sheet plastic, metal, acrylonitrile butadiene styrene (ABS) orother rigid material. An adhesive may be utilized to secure the inputangled coupler 60 to the input end 12 of the first tube 10 and to securethe output angled coupler 66 to the output end 34 of the third tube 30.The adhesive may include a solvent cement such as acrylic adhesive,polyurethane adhesive or other adhesive suited to the tubing andcoupling construction.

A sealant 226 seals the continuous tube 219 to the first flowing fluidinput bore 218 and the first flowing fluid output bore 220 forpreventing leaching of the first flowing fluid 4 from the closedreservoir 210. The sealant 226 also seals the continuous conduit 100 tothe second flowing fluid input bore 222 and the second flowing fluidoutput bore 224 for preventing leaching of the first flowing fluid 4from the closed reservoir 210. Since the diameter of the apertures 80-90are slightly larger than the outside diameter of the continuous conduit100, the first flowing fluid 4 that is propelled through angled couplers60-68 will leach from between the apertures 80-90 and outer wall of thecontinuous conduit 100. The leaching of the first flowing fluid 4 fromthe apertures 80-90 will fill the closed reservoir 210.

The continuous tube 219 links the first pump 130 to the input orifice 16of the first tube 10 for propelling the first flowing fluid 4 from theinput end 12 of the first tube 10 through the first continuous fluidpath 70 and the second continuous fluid path 72 to the output end 34 ofthe third tube 30. A compressor 162 is linked to the continuous conduit100 for propelling the second flowing fluid 6 through the continuousconduit 100.

The heat exchanger 2 as shown in FIGS. 1-14 illustrates utilizing thepresent invention in either a chilled-water split-system to provide airconditioning to a structure or a heat pump split-system to provideheating to a structure. However, the heat exchanger 2 may be utilizedfor other proposes where thermal energy is needed to transfer between afirst flowing fluid 4 and a second flowing fluid 6.

In FIGS. 1-8 and 14 illustrate the first embodiment of the heatexchanger 2 for transferring energy between a first flowing fluid 4 anda second flowing fluid 6. The first flowing fluid 4 may include water 8,brine liquid or other solution. The second flowing fluid may include arefrigerant 9. The open reservoir 120 contains the water 8 or brineliquid wherein the heat exchanger 2 is submerged. Since the heatexchanger 2 is submerged within the water 8 to be cooled or heated, theheat exchanger 2 is not required to be insulated and the requirement forpreventing leaching of the water 8 from the first 70, second 72, third74 and fourth continuous fluid paths is not needed. In addition, theheat exchanger 2 is permitted to expand and contract within the openreservoir 120 upon exposure to various temperatures without damage.

The first 10, second 20 and third 30 tubes and the continuous conduit100 are positioned within the open reservoir 120. A first water pump 132is linked to the input orifice 16 of the first tube 10 for propellingthe water 8 from the input end 12 of the first tube 10 through the firstcontinuous fluid path 70 and the second continuous fluid path 72 to theoutput end 34 of the third tube 30. The first water pump 132 may includea submersible utility pump or other liquid pumps.

The heat exchanger 2 utilized in a chilled-water split-system forproviding air conditioning to a structure includes a refrigerate system160 and a chilled water system 180. The refrigerate system 160 comprisesa compressor 162, a first plurality of coils 163, an expansion valve 168and a low pressure switch 172 all linked within the continuous conduit100. The compressor 162 compresses the refrigerant 9 gas which increasesthe refrigerant's pressure and temperature. A compressor fan 166 ispositioned adjacent to the first plurality of coils 163 to force airover the first plurality of coils 163. The first plurality of coils 163and compressor fan 166 permit the refrigerant 9 to dissipate the heat tocool the refrigerant 9. As the refrigerant 9 flows through the expansionvalve 168, the liquid refrigerant is moved from a high-pressure zone toa low-pressure zone to permit the refrigerant 9 to expand and evaporatemaking the refrigerant cold. The gas refrigerant 9 flows through thecontinuous conduit 100 of the heat exchanger 2 to absorb heat.

The first water pump 132 propels water 8 from the input end 12 of thefirst tube 10 through the first 70, second 72, third 74 and fourth 76continuous fluid path of the heat exchanger 2. The gas refrigerant 9absorbs heat from the water 8 which cools the water 8 temperature alongthe length of the heat exchanger 2. The refrigerant which has absorbedheat may then be further heated by inserting the continuous conduit 100after exiting the fourth aperture 86 into the fifth aperture 88 of theinitial angled coupler 67 to extend the continuous conduit 100 insidethe fifth tube 50. By inserting the continuous conduit 100 within thefifth tube 50, the heated refrigerant 9 is further heated by exposingthe heated refrigerant 9 to additional water 8 along the length of thefifth tube 50. This additional exposure is referred to as superheatingof the refrigerant before the refrigerant 9 is returned to thecompressor 162. The output orifice 36 of the third tube 30 may bepositioned at the bottom of the open reservoir 120 and the inlet end 134of the first water pump 132 may be positioned at the top of the openreservoir 120 to take advance of the thermocline between the top watertemperature and the bottom water temperature. A first thermometer 202may be secured at the top of the open reservoir 120 for measuring thetemperature of the water 8 at the top of the open reservoir 120. Inaddition, a second thermometer 204 may be secured at the bottom of theopen reservoir 120 for measuring the temperature of the water 8 at thebottom of the open reservoir 120.

Preferably, the refrigerate system 160 is operated during off peakelectrical consumption rates such that the water 8 may be chilled for areduced electric rate. Once the water 8 in the open reservoir 120 hasbeen chilled, the chilled water 8 may be utilized in the chilled watersystem 180 to provide air conditioning to a structure during peakelectrical consumption rates. In most cases the refrigerate system 160is utilized during the night time hours and the chilled water system 180is utilized during the day time hours. By operating the refrigeratesystem 160 during off peak electrical consumption rates and operatingthe chilled water system 180 during peak electrical consumption rates,the overall cost of cooling the structure is reduced.

The chilled water system 180 includes a second water pump 142, a secondplurality of coils 182, a continuous pipe 186 and a chilled water fan184. A second water pump union 148 may be positioned within thecontinuous pipe 186 to facilitate removal of the second water pump 142if maintenance or replacement is required. A cutoff valve 190 and acheck valve 192 may also be positioned within the continuous pipe 186 toprevent drainage of the first flowing fluid 4 above the cutoff valve 190and the check valve 192 if the second water pump union 148 was utilizedto remove the second water pump 142. The continuous pipe 186 has aninlet end 194 and an outlet end 196 both positioned within the openreservoir 120. The second plurality of coils 182 are in line with thecontinuous pipe 186. The second water pump 142 is linked to the inletend 194 of the continuous pipe 186 for propelling the chilled water 8through the continuous pipe 186 and through a second plurality of coils182. The chilled water fan 184 is positioned adjacent to the secondplurality of coils 182 to force air over the second plurality of coils182. As the chilled water fan 184 forces air over the second pluralityof coils 182, the heat from the structure is absorbed into the water 8which cools the structure. The heated water 8 is then returned to theopen reservoir 120.

The second water pump 142 may include a submersible utility pump orother liquid pumps. The second water pump 142 is preferably positionedon the bottom of the open reservoir 120 for propelling the water 8 froman inlet end 144 of the continuous pipe 186 to an outlet end 146 of thecontinuous pipe 186. Preferably, the chilled water system 180 isoperated during peak electrical consumption rates such that the chilledwater 8 may be utilized to cool the structure in alternative toconsuming electrical current during peak rate periods. The firstembodiment of the invention could also be utilized as a heat pumpsplit-system to provide heating to a structure by reversing the processof the chilled-water split-system.

In FIGS. 1-5 and 8 the heat exchanger 2 is shown with the first andsecond continuous fluid paths 70 and 72 having a length of ten (10)feet. The first and second water pumps 140 and 142 have a flow rate often (10) gallons per minute. The open reservoir 120 may be characterizedas a storage tank for housing the water 8, brine liquid or othersolution. The storage tank as shown has a volume of fifteen hundred(1,500) gallons. The refrigerate system 160 as shown includes a two andone half (2½) ton compressor unit. The chilled water system 180 as shownincludes a fractional horsepower motor. The above design parameters aresufficient to cool a structure having eighteen hundred (1,800) squarefeet. It should be understood that the any one or more of the abovedesign parameters may be altered to utilize the first embodiment of theheat exchanger 2.

Similarly to the function and use of the first embodiment of theinvention with the open reservoir 120, the second embodiment of theinvention may also be utilized in either a chilled-water split-system toprovide air conditioning to a structure or a heat pump split-system toprovide heating to a structure. The first flowing fluid 4 may includewater 8, brine liquid or other solution. The second flowing fluid mayinclude a refrigerant 9. The closed reservoir 210 contains the firstflowing fluid. The closed reservoir 210 contains the water 8 or brineliquid wherein the heat exchanger 2 is utilized within the closedreservoir 210. Since the heat exchanger 2 is utilized within the water 8to be cooled or heated, the heat exchanger 2 is not required to beinsulated and the requirement for preventing leaching of the water 8from the first 70, second 72, third 74 and fourth continuous fluid pathsis not needed. In addition, the heat exchanger 2 is permitted to expandand contract within the closed reservoir 210 upon exposure to varioustemperatures without damage.

The first 10, second 20 and third 30 tubes and the continuous conduit100 are positioned within the closed reservoir 210. A first water pump132 is linked to the input orifice 16 of the first tube 10 forpropelling the water 8 from the input end 12 of the first tube 10through the first continuous fluid path 70 and the second continuousfluid path 72 to the output end 34 of the third tube 30. The first waterpump 132 may include a submersible utility pump or other liquid pumps. Acompressor 162 is linked to the continuous conduit 100 for propellingthe refrigerant 10 through the continuous conduit 100 and through afirst plurality of coils 163.

FIG. 14 illustrates a condenser/pump electrical circuit 240 forcontrolling the refrigerate system 160 and a fan coil/pump circuit 250for controlling the chilled water system 180.

The present disclosure includes that contained in the appended claims aswell as that of the foregoing description. Although this invention hasbeen described in its preferred form with a certain degree ofparticularity, it is understood that the present disclosure of thepreferred form has been made only by way of example and that numerouschanges in the details of construction and the combination andarrangement of parts may be resorted to without departing from thespirit and scope of the invention.

1. A heat exchanger for transferring energy between a first flowingfluid and a second flowing fluid, comprising: a first tube having aninput end and an output end; a second tube having an input end and anoutput end; a primary angled coupler joining said output end of saidfirst tube to said input end of said second tube for creating a firstcontinuous fluid path for the first flowing fluid; a third tube havingan input end and an output end; a secondary angled coupler joining saidoutput end of said second tube to said input end of said third tube forcreating a second continuous fluid path for the first flowing fluid; aninput orifice located at said input end of said first tube for inputtingthe first flowing fluid into said first tube; an output orifice locatedat said output end of said third tube for outputting the first flowingfluid from said third tube; a first aperture positioned relative to saidinput end of said first tube; a second aperture positioned in saidprimary angled coupler; a third aperture positioned in said secondaryangled coupler; a fourth aperture positioned relative to said output endof said third tube; a continuous conduit for conveying the secondflowing fluid between a conduit input and a conduit output; saidcontinuous conduit having a cross sectional area less than a crosssectional area of said first tube and said third tube for enabling saidcontinuous conduit to be inserted within said first tube and said thirdtube; said continuous conduit entering said first aperture to extendinside said first tube for enabling heat exchange between the firstflowing fluid and the second flowing fluid; said continuous conduitexiting from said second aperture of said primary angled coupler toextend outside said second tube; said continuous conduit entering saidthird aperture of said secondary angled coupler to extend inside saidthird tube for enabling heat exchange between the first flowing fluidand the second flowing fluid; and said continuous conduit exiting saidfourth aperture to extend outside said third tube.
 2. A heat exchangeras set forth in claim 1, wherein said first tube, said second tube andsaid third tube include a polymeric material.
 3. A heat exchanger as setforth in claim 1, wherein said continuous conduit includes a metallicmaterial.
 4. A heat exchanger as set forth in claim 1, wherein saidprimary angled coupler and said secondary angled coupler include aninety degree coupler.
 5. A heat exchanger as set forth in claim 1,wherein said primary angled coupler and said secondary angled couplerinclude a ninety degree coupler; and said ninety degree couplerincluding a polymeric material.
 6. A heat exchanger as set forth inclaim 1, wherein an input angled coupler secured on said input end ofsaid first tube; an output angled coupler secured on said output end ofsaid third tube; said first aperture positioned in said input angledcoupler; and said fourth aperture positioned in said output angledcoupler.
 7. A heat exchanger as set forth in claim 1, wherein saidprimary angled coupler and said secondary angled coupler includes aninety degree coupler; an input angled coupler secured on said input endof said first tube; an output angled coupler secured on said output endof said third tube; said first aperture positioned in said input angledcoupler; said fourth aperture positioned in said output angled coupler;said input angled coupler and said output angled coupler include aninety degree coupler; and said ninety degree coupler including apolymeric material.
 8. A heat exchanger as set forth in claim 1, furtherincluding a fourth tube having an input end and an output end; an inputangled coupler joining said output end of said fourth tube to said inputend of said first tube for creating a third continuous fluid path forthe first flowing fluid; a fifth tube having an input end and an outputend; an initial angled coupler joining said output end of said fifthtube to said input end of said fourth tube for creating a fourthcontinuous fluid path for the first flowing fluid; a subsequent angledcoupler secured on said input end of said fifth tube; a fifth aperturepositioned in said initial angled coupler; a sixth aperture positionedin said subsequent angled coupler; said continuous conduit after exitingsaid fourth aperture entering said fifth aperture of said initial angledcoupler to extend inside said fifth tube for enabling heat exchangebetween the first and second flowing fluids; and said continuous conduitexiting said sixth aperture to extend outside said fifth tube.
 9. A heatexchanger as set forth in claim 1, further including a fourth tubehaving an input end and an output end; an input angled coupler joiningsaid output end of said fourth tube to said input end of said first tubefor creating a third continuous fluid path for the first flowing fluid;a fifth tube having an input end and an output end; an initial angledcoupler joining said output end of said fifth tube to said input end ofsaid fourth tube for creating a fourth continuous fluid path for thefirst flowing fluid; a subsequent angled coupler secured on said inputend of said fifth tube; a fifth aperture positioned in said initialangled coupler; a sixth aperture positioned in said subsequent angledcoupler; said continuous conduit after exiting said fourth apertureentering said fifth aperture of said initial angled coupler to extendinside said fifth tube for enabling heat exchange between the first andsecond flowing fluids; said continuous conduit exiting said sixthaperture to extend outside said fifth tube; and the direction of flow ofthe first flowing fluid in said fifth tube opposite to the direction offlow of the second flowing fluid in said continuous conduit.
 10. A heatexchanger as set forth in claim 1, further including a fourth tubehaving an input end and an output end; an input angled coupler joiningsaid output end of said fourth tube to said input end of said first tubefor creating a third continuous fluid path for the first flowing fluid;a fifth tube having an input end and an output end; an initial angledcoupler joining said output end of said fifth tube to said input end ofsaid fourth tube for creating a fourth continuous fluid path for thefirst flowing fluid; a subsequent angled coupler secured on said inputend of said fifth tube; a fifth aperture positioned in said initialangled coupler; a sixth aperture positioned in said subsequent angledcoupler; said continuous conduit after exiting said fourth apertureentering said fifth aperture of said initial angled coupler to extendinside said fifth tube for enabling heat exchange between the first andsecond flowing fluids; said continuous conduit exiting said sixthaperture to extend outside said fifth tube; the direction of flow of thefirst flowing fluid in said first tube, said second tube and said thirdtube matching the direction of flow of the second flowing fluid in saidcontinuous conduit; and the direction of flow of the first flowing fluidin said fifth tube opposite to the direction of flow of the secondflowing fluid in said continuous conduit.
 11. A heat exchanger as setforth in claim 1, further including an open reservoir for containing thefirst flowing fluid; said first, second and third tubes and saidcontinuous conduit positioned within said open reservoir; a first pumplinked to said input orifice of said first tube for propelling the firstflowing fluid from said input end of said first tube through said firstcontinuous fluid path and said second continuous fluid path to saidoutput end of said third tube; and a compressor linked to saidcontinuous conduit for propelling the second flowing fluid through saidcontinuous conduit.
 12. A heat exchanger as set forth in claim 1,further including a closed reservoir for containing the first flowingfluid; said first, second and third tubes and said continuous conduitpositioned within said closed reservoir; a first pump linked to saidinput orifice of said first tube for propelling the first flowing fluidfrom said input end of said first tube through said first continuousfluid path and said second continuous fluid path to said output end ofsaid third tube; and a compressor linked to said continuous conduit forpropelling the second flowing fluid through said continuous conduit. 13.A heat exchanger as set forth in claim 1, wherein the first flowingfluid includes water and the second flowing fluid includes arefrigerant; an open reservoir containing the water; said first, secondand third tubes and said continuous conduit positioned within said openreservoir; a first water pump linked to said input orifice of said firsttube for propelling said water from said input end of said first tubethrough said first continuous fluid path and said second continuousfluid path to said output end of said third tube; a compressor linked tosaid continuous conduit for propelling said refrigerant through saidcontinuous conduit and through a first plurality of coils; a continuouspipe having an inlet end and an outlet end positioned within said openreservoir; and a second water pump linked to said inlet end of saidcontinuous pipe for propelling the water through said continuous pipeand through a second plurality of coils.
 14. A heat exchanger as setforth in claim 1, wherein the first flowing fluid includes water and thesecond flowing fluid includes a refrigerant; a closed reservoir forcontaining the first flowing fluid; said first, second and third tubesand said continuous conduit positioned within said closed reservoir; awater pump linked to said input orifice of said first tube forpropelling the water from said input end of said first tube through saidfirst continuous fluid path and said second continuous fluid path tosaid output end of said third tube; and a compressor linked to saidcontinuous conduit for propelling the refrigerant through saidcontinuous conduit and through a first plurality of coils.
 15. A heatexchanger for transferring energy between a first flowing fluid and asecond flowing fluid, comprising: a first tube having an input end andan output end; a second tube having an input end and an output end; aprimary angled coupler joining said output end of said first tube tosaid input end of said second tube for creating a first continuous fluidpath for the first flowing fluid; a third tube having an input end andan output end; a secondary angled coupler joining said output end ofsaid second tube to said input end of said third tube for creating asecond continuous fluid path for the first flowing fluid; an inputangled coupler secured on said input end of said first tube forinputting the first flowing fluid into said first tube; an output angledcoupler secured on said output end of said third tube for outputting thefirst flowing fluid from said third tube; a first aperture positioned insaid input angled coupler; a second aperture positioned in said primaryangled coupler; a third aperture positioned in said secondary angledcoupler; a fourth aperture positioned in said output angled coupler; acontinuous conduit for conveying the second flowing fluid between aconduit input and a conduit output; said continuous conduit having across sectional area less than a cross sectional area of said first tubeand said third tube for enabling said continuous conduit to be insertedwithin said first tube and said third tube; said continuous conduitentering said first aperture to extend inside said first tube forenabling heat exchange between the first flowing fluid and the secondflowing fluid; said continuous conduit exiting from said second apertureof said primary angled coupler to extend outside said second tube; saidcontinuous conduit entering said third aperture of said secondary angledcoupler to extend inside said third tube for enabling heat exchangebetween the first flowing fluid and the second flowing fluid; and saidcontinuous conduit exiting said fourth aperture to extend outside saidthird tube.
 16. A heat exchanger as set forth in claim 15, wherein saidfirst tube, said second tube, and said third tube, said primary angledcoupler, said secondary angled coupler, input angled coupler and saidoutput angled coupler include a polymeric material.
 17. A heat exchangeras set forth in claim 15, wherein said continuous conduit includes ametallic material.
 18. A heat exchanger as set forth in claim 15,wherein said primary angled coupler, said secondary angled coupler,input angled coupler and said output angled coupler include a ninetydegree coupler.
 19. A heat exchanger as set forth in claim 15, furtherincluding a fourth tube having an input end and an output end; saidinput angled coupler joining said output end of said fourth tube to saidinput end of said first tube for creating a third continuous fluid pathfor the first flowing fluid; a fifth tube having an input end and anoutput end; an initial angled coupler joining said output end of saidfifth tube to said input end of said fourth tube for creating a fourthcontinuous fluid path for the first flowing fluid; a subsequent angledcoupler secured on said input end of said fifth tube; a fifth aperturepositioned in said initial angled coupler; a sixth aperture positionedin said subsequent angled coupler; and said continuous conduit afterexiting said fourth aperture entering said fifth aperture of saidinitial angled coupler to extend inside said fifth tube for enablingheat exchange between the first and second flowing fluids; and saidcontinuous conduit exiting said sixth aperture to extend outside saidfifth tube.
 20. A heat exchanger as set forth in claim 15, furtherincluding a fourth tube having an input end and an output end; saidinput angled coupler joining said output end of said fourth tube to saidinput end of said first tube for creating a third continuous fluid pathfor the first flowing fluid; a fifth tube having an input end and anoutput end; an initial angled coupler joining said output end of saidfifth tube to said input end of said fourth tube for creating a fourthcontinuous fluid path for the first flowing fluid; a subsequent angledcoupler secured on said input end of said fifth tube; a fifth aperturepositioned in said initial angled coupler; a sixth aperture positionedin said subsequent angled coupler; said continuous conduit after exitingsaid fourth aperture entering said fifth aperture of said initial angledcoupler to extend inside said fifth tube for enabling heat exchangebetween the first and second flowing fluids; said continuous conduitexiting said sixth aperture to extend outside said fifth tube; and thedirection of flow of the first flowing fluid in said fifth tube oppositeto the direction of flow of the second flowing fluid in said continuousconduit.
 21. A heat exchanger as set forth in claim 15, furtherincluding a fourth tube having an input end and an output end; saidinput angled coupler joining said output end of said fourth tube to saidinput end of said first tube for creating a third continuous fluid pathfor the first flowing fluid; a fifth tube having an input end and anoutput end; an initial angled coupler joining said output end of saidfifth tube to said input end of said fourth tube for creating a fourthcontinuous fluid path for the first flowing fluid; a subsequent angledcoupler secured on said input end of said fifth tube; a fifth aperturepositioned in said initial angled coupler; a sixth aperture positionedin said subsequent angled coupler; and said continuous conduit afterexiting said fourth aperture entering said fifth aperture of saidinitial angled coupler to extend inside said fifth tube for enablingheat exchange between the first and second flowing fluids; saidcontinuous conduit exiting said sixth aperture to extend outside saidfifth tube; the direction of flow of the first flowing fluid in saidfirst tube, said second tube and said third tube matching the directionof flow of the second flowing fluid in said continuous conduit; and thedirection of flow of the first flowing fluid in said fifth tube oppositeto the direction of flow of the second flowing fluid in said continuousconduit.
 22. A heat exchanger for transferring energy between a firstflowing fluid and a second flowing fluid, comprising: a first tubehaving an input end and an output end; a second tube having an input endand an output end; a primary angled coupler joining said output end ofsaid first tube to said input end of said second tube for creating afirst continuous fluid path for the first flowing fluid; a third tubehaving an input end and an output end; a secondary angled couplerjoining said output end of said second tube to said input end of saidthird tube for creating a second continuous fluid path for the firstflowing fluid; a fourth tube having an input end and an output end; aninput angled coupler joining said output end of said fourth tube to saidinput end of said first tube for creating a third continuous fluid pathfor the first flowing fluid; a fifth tube having an input end and anoutput end; an initial angled coupler joining said output end of saidfifth tube to said input end of said fourth tube for creating a fourthcontinuous fluid path for the first flowing fluid; an subsequent angledcoupler secured on said input end of said fifth tube for inputting thefirst flowing fluid into said fifth tube; an output angled couplersecured on said output end of said third tube for outputting the firstflowing fluid from said third tube; a first aperture positioned in saidinput angled coupler; a second aperture positioned in said primaryangled coupler; a third aperture positioned in said secondary angledcoupler; a fourth aperture positioned in said output angled coupler; afifth aperture positioned in said initial angled coupler; a sixthaperture positioned in said subsequent angled coupler; a continuousconduit for conveying the second flowing fluid between a conduit inputand a conduit output; said continuous conduit having a cross sectionalarea less than a cross sectional area of said first tube, said thirdtube and said fifth tube for enabling the continuous conduit to beinserted within said first tube, said third tube and said fifth tube;said continuous conduit entering said first aperture to extend insidesaid first tube for enabling heat exchange between the first flowingfluid and the second flowing fluid; said continuous conduit exiting fromsaid second aperture of said primary angled coupler to extend outsidesaid second tube; said continuous conduit entering said third apertureof said secondary angled coupler to extend inside said third tube forenabling heat exchange between the first flowing fluid and the secondflowing fluid; said continuous conduit exiting said fourth aperture toextend outside said third tube; said continuous conduit entering saidfifth aperture of said initial angled coupler to extend inside saidfifth tube for enabling heat exchange between the first flowing fluidand the second flowing fluid; and said continuous conduit exiting saidsixth aperture to extend outside said fifth tube.